| 摘要 |
A rolled or forged Al-Zn-Cu-Mg aluminum-based alloy wrought product having a thickness from 2 to 10 inches. The product has been treated by solution heat-treatment, quenching and aging, and the product comprises (in weight-%) :Zn 6.2 - 7.2, Mg 1.5 - 2.4, Cu 1.7 - 2.1. Fe 0 - 0.13, Si 0 - 0.10, Ti 0 - 0.06, Zr 0.06 - 0.13, Cr 0 - 0.04, Mn 0 - 0.04, impurities and other incidental elements <= 0.05 each. Alloys per se and aircraft and aerospace uses, as well as methods of making products are also disclosed. |
